The Tube and Fittings,metallic, cataloged under National Stock Number 4710-01-199-1851, is classified within Federal Supply Class 4710 (Pipe, Tube and Rigid Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Lockheed Martin Corporation Div Rms. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4710-01-199-1851 |
| Primary Part Number | 1214D1691 |
| Item Name | Tube and Fittings,metallic |
| FSC / FSG | 4710 / 47 — Pipe, Tube and Rigid Tubing |
| Manufacturer | Lockheed Martin Corporation Div Rms |
| Status | ACTIVE |
| Seat Angle in Deg | 37.0 FIRST END |
| Design Form | PREBENT |
| Mating End Quantity | 1 FIRST END |
| Wall Thickness | 0.049 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND FIRST END |
| Nominal Thread Size | 0.438 INCHES FIRST END IN |
| End Connection Style | SWIVEL NUT WITH COMPRESSION SLEEVE FIRST END |
| Tube Outside Diameter | 0.250 INCHES NOMINAL IN |
| Thread Class | 3B FIRST END |
| Material | STEEL FIRST END |
| Material | STEEL TUBING |
| Thread Series Designator | UNF SINGLE END |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 1214D1691 PRIMARY | Lockheed Martin Corporation Div Rms (USA) |
| 1213E1665 FIND 48 | Lockheed Martin Corporation Div Rms (USA) |
| Reference | Meaning |
|---|---|
| 1214D1691 | 3/9 Design control — primary reference Martin Marietta Technologies Inc Sub of Martin Marietta Corp Aero and Naval Systems |
| 1213E1665 FIND 48 | 5/9 Secondary reference Martin Marietta Technologies Inc Sub of Martin Marietta Corp Aero and Naval Systems |
NSN 4710-01-199-1851 is a Tube and Fittings,metallic, manufactured by Lockheed Martin Corporation Div Rms, classified under FSC 4710, Pipe, Tube and Rigid Tubing. Status: active.
NSN 4710-01-199-1851 has 2 manufacturer part numbers on file: 1214D1691 (Lockheed Martin Corporation Div Rms), 1213E1665 FIND 48 (Lockheed Martin Corporation Div Rms).
Key specifications for 1214D1691: Seat Angle in Deg: 37.0 FIRST END; Design Form: PREBENT; Mating End Quantity: 1 FIRST END; Wall Thickness: 0.049 INCHES NOMINAL IN. 12 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.